露天采矿技术2025，Vol.40Issue(1)：7-11,5.DOI:10.13235/j.cnki.ltcm.20240143
基于FlAC3D的反倾边坡局部陡帮开采破坏机理研究
Study on the failure mechanism of local steep slope mining of anti-dip slope based on FlAC3D
马文成 1詹刚 1向勇 1王联志 1伍小兵 1闫杰 2贾正昭2
作者信息
- 1. 新疆宜化矿业有限公司,新疆 昌吉 831100
- 2. 煤炭科学技术研究院有限公司,北京 100013
- 折叠
摘要
Abstract
Aiming at the failure mode of anti-dip slope steep slope mining in open-pit coal mine,combined with the characteristics of steep slope mining in open-pit coal mine,based on the study of the failure mechanism of anti-dip slope,the failure mode of steep slope mining of anti-dip slope is put forward,and the west slope of Wucaiwan No.1 Open-pit Coal Mine is selected to carry out FLAC3D numerical simulation research.The variation laws of stress field,displacement field and strain are obtained,and the sliding mechanism is verified.The results show that the sliding deformation of anti-dip slope in open-pit coal mine mainly goes through four stages,namely,tensile deformation zone,upward transfer failure zone,potential failure mode and front shear failure zone.The simulation shows that there are two deformation and failure modes of the slope,the deformation and failure of the local area and the overall sliding deformation characteristics;the deformation characteristics of the local area are the displacement of the front rock mass squeezing the coal seam to the free face of the slope under the action of gravity.The overall deformation mode conforms to the failure mode of anti-dip steep slope mining,forming a circular arc potential sliding surface at the trailing edge and a linear sliding mode at the leading edge.关键词
反倾边坡/陡帮开采/倾倒破坏/滑动机理/数值模拟Key words
anti-dip slope/steep slope mining/toppling destruction/sliding mechanism/numerical simulation分类
矿山工程引用本文复制引用
马文成,詹刚,向勇,王联志,伍小兵,闫杰,贾正昭..基于FlAC3D的反倾边坡局部陡帮开采破坏机理研究[J].露天采矿技术,2025,40(1):7-11,5.
